US11569888B1ActiveUtilityA1
Enhanced multi-panel user equipment measurement for improved mobility robustness
Est. expiryAug 5, 2041(~15.1 yrs left)· nominal 20-yr term from priority
Inventors:Alperen GundoganIngo VieringAhmad AwadaJedrzej StanczakChristian RomHalit Murat GürsuPanagiotis Spapis
H04B 7/0639H04B 17/15H04B 17/29H04W 24/02H04W 24/08H04B 7/0404H04B 7/0874
53
PatentIndex Score
0
Cited by
12
References
18
Claims
Abstract
Systems, methods, apparatuses, and computer program products for improving measurement accuracy for multipanel UEs with a single baseband unit are provided. One method may include receiving, by a user equipment, at least one of at least one layer 3 filter time constant Tcst_x, or at least one scaling factor, and updating, by the user equipment, at least one current filter time constant according to at least one of the received Tcst_x, or the at least one scaling factor.
Claims
exact text as granted — not AI-modifiedWe claim:
1. An apparatus, comprising:
at least one processor; and
at least one memory including computer program code,
wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to:
configure at least one layer 3 filter coefficient k L3 ;
transmit at least one of at least one layer 3 filter time constant T cst_x or at least one scaling factor to at least one user equipment; and
calculate the at least one layer 3 filter time constant T cst_x according to at least one of:
at least one layer 3 filter time constant T cst derived from the at least one layer 3 filter coefficient k L3 ;
at least one sampling period of layer 3 infinite impulse response filtering;
at least one sampling rate; or
at least one scaling factor,
wherein the scaling factor is applied when the sampling period of a layer 3 infinite impulse response filtering is higher than T cst or the sampling rate.
2. The apparatus of claim 1 , wherein the at least one layer 3 filter time constant T cst_x is calculated according to:
T cst_x =T cst +max ((T smp −max(T cst , X)), 0) tan(θ), wherein
T
c
s
t
=
-
X
·
ln
(
2
)
ln
(
1
-
α
)
=
-
X
log
2
(
1
-
α
)
,
α
=
2
-
k
L
3
4
,
X comprises a sampling rate,
k L3 comprises a filter coefficient associated with layer 3 infinite impulse response filtering,
T smp comprises a sampling period of layer 3 infinite impulse response filtering,
α comprises a float, and
tan(θ) comprises a scaling factor.
3. The apparatus of claim 1 , wherein the at least one layer 3 filter time constant T cst_x comprises a table.
4. The apparatus of claim 1 , wherein the at least one filter coefficient k L3 comprises a layer 3 infinite impulse response.
5. The apparatus of claim 1 , wherein the at least one scaling factor is transmitted in at least one radio resource control reconfiguration message and configured to calculate T cst_x .
6. The apparatus of claim 1 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the apparatus at least to:
transmit, to the at least one user equipment, at least one indication to reduce at least one time-to-trigger when the at least one user equipment applies the at least one scaling factor to at least one time characteristic of the layer 3 infinite impulse response filtering.
7. The apparatus of claim 1 , wherein the at least one layer 3 filter coefficient is updated according to the at least one layer 3 filter time constant T cst_x .
8. An apparatus, comprising:
at least one processor; and
at least one memory including computer program code,
wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to:
receive at least one of at least one layer 3 filter time constant T cst_x or at least one scaling factor; and
update at least one current filter time constant according to at least one of the received T cst_x or the at least one scaling factor,
wherein the at least one layer 3 filter time constant T cst_x is calculated according to at least one of:
at least one layer 3 filter time constant T cst derived from the at least one layer 3 filter coefficient k L3 ;
at least sampling period of layer 3 infinite impulse response filtering;
at least one sampling rate; or
the at least one scaling factor,
wherein the scaling factor is applied when the sampling period of a layer 3 infinite impulse response filtering is higher than T cst or the sampling rate.
9. The apparatus of claim 8 , wherein the at least one filter time constant T cst_x is calculated according to:
T cst_x =T cst +max((T smp −max(T cst , X)), 0) tan(θ), wherein
T
c
s
t
=
-
X
·
ln
(
2
)
ln
(
1
-
α
)
=
-
X
log
2
(
1
-
α
)
,
α
=
2
-
k
L
3
4
,
X comprises a sampling rate,
k L3 comprises a filter coefficient associated with layer 3 infinite impulse response filtering,
T smp comprises a sampling period of layer 3 infinite impulse response filtering,
α comprises a float, and
tan(θ) comprises a scaling factor.
10. The apparatus of claim 8 , wherein the at least one filter coefficient k L3 comprises a layer 3 infinite impulse response.
11. The apparatus of claim 8 , wherein the at least one scaling factor is transmitted in at least one radio resource control reconfiguration message and configured to calculate T cst_x .
12. The method of claim 11 , wherein the at least one layer 3 filter coefficient is updated according to the at least one layer 3 filter time constant T cst_x .
13. The apparatus of claim 8 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the apparatus at least to:
transmit at least one indication to reduce at least one time-to-trigger when the at least one user equipment applies the at least one scaling factor to at least one time characteristic of the layer 3 infinite impulse response filtering.
14. The apparatus of claim 8 , wherein the at least one layer 3 filter coefficient is updated according to the at least one layer 3 filter time constant T cst_x .
15. A method, comprising:
receiving, by a user equipment, at least one of at least one layer 3 filter time constant T cst_x or at least one scaling factor; and
updating, by the user equipment, at least one current filter time constant according to at least one of the received T cst_x or the at least one scaling factor,
wherein the scaling factor is applied when sampling period of a layer 3 infinite impulse response filtering is higher than T cst or the sampling rate.
16. The method of claim 15 , wherein the at least one layer 3 filter time constant T cst_x is calculated according to at least one of:
at least one layer 3 filter time constant T cst derived from the at least one layer 3 filter coefficient k L3 ;
at least one sampling period T smp of layer 3 infinite impulse response filtering;
at least one sampling rate X; or
the at least one scaling factor.
17. The method of claim 15 , wherein the at least one filter time constant T cst_x is calculated according to:
T cst_x =T cst +max ((T smp −max(T cst , X)), 0) tan(θ), wherein
T
c
s
t
=
-
X
·
ln
(
2
)
ln
(
1
-
α
)
=
-
X
log
2
(
1
-
α
)
,
α
=
2
-
k
L
3
4
,
X comprises a sampling rate,
k L3 comprises a filter coefficient associated with layer 3 infinite impulse response filtering,
T smp comprises a sampling period of layer 3 infinite impulse response filtering,
a comprises a float, and
tan(θ) comprises a scaling factor.
18. The method of claim 15 , wherein the at least one scaling factor is transmitted in at least one radio resource control reconfiguration message and configured to calculate T cst_x .Cited by (0)
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